Safe power! Adding fuel boosts power but soaring exhaust gas temperatures eventually make full power blasts and towing risky. Snow Performance's Boost Cooler® systems for turbo-diesels solve this problem by reducing EGT's while adding an additional 70hp safely! Each system has everything to use water-methanol injection safely including new "SHO" pump, specially mapped digital variable controller for maximum power, specially designed nozzles that spin the fluid supersonically, safety switch as well as all the fittings and special parts for EZ installation. For all diesels including RV applications and it comes with available lifetime warranty.